A12l - 5…e6 - London Defence (1924)

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A12l — London Defence (1924)
1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6
Les coups candidats
6.O-O — 64.1% (975 parties)
Ambassadeurs : Spiridonov, Nikola (5x), Giardelli, Sergio C. (4x), Feustel, Bernd (4x), Mudra, Tomas (4x), Ujtelky, Maximilián Samuel Rudolf (3x), Byrne, David (3x), Agdestein, Simen (3x), Moiseev, Oleg (3x)
Ambassadeurs : Freisler, Pavel (3x), Gourlay, Iain (3x), Lubczynski, Rafal (3x), Botvinnik, Mikhail (2x), Sarosy, Zoltan L (2x), Anderson, Frank Ross (2x), Ribli, Zoltan (2x), Nogueiras Santiago, Jesus (2x)
6.d3 — 1.4% (21 parties)
Ambassadeurs : Raab, Peter (2x), Etruk, Rein T (1x), Nei, Iivo (1x), Van Riemsdijk, Herman C. (1x), Garcia Toledo, Pedro (1x), Streshinsky, L (1x), Tolmachev, Aleksander (1x), Kononenko, Tatiana (1x)
6.Nh4 — 0.2% (3 parties)
Ambassadeurs : Breustedt, Werner (1x), Kunz, Horst (1x), Djeno, Drago (1x), Bjelicic, Jan (1x), Olarte, Stefan (1x), Betrisey, Claude (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.O-O 6.Bb2 6.d3 6.Nh4
<1800 68 63% 32% 1% 1%
1800-2200 670 64% 34% 1% —
2200-2600 544 65% 33% 1% 0%
2600+ 8 50% 50% — —
Évolution par décennie (% des parties)
Décennie N parties 6.O-O 6.Bb2 6.d3 6.Nh4
1950s 21 33% 62% — 5%
1960s 31 77% 19% 3% —
1970s 52 71% 27% 2% —
1980s 100 68% 31% 1% —
1990s 316 68% 30% 2% —
2000s 431 61% 37% 2% —
2010s 471 64% 35% 0% 0%
2020s 99 59% 38% 2% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.O-O 64% 59% ▼ -5.7%
6.Bb2 35% 38% ▲ +3.6%
6.d3 0% 2% ▲ +1.6%
6.Nh4 0% 1% ▲ +0.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Botvinnik, Mikhail — 2 parties
Karpov, Anatoly — 2 parties
Ju, Wenjun — 2 parties
Smyslov, Vladimir — 1 partie
Parties historiques
6.O-O — 64.1% (975 parties)
1953 — Smyslov, Vasily vs Bronstein, David I — 1/2-1/2 — Zurich SUI
1955 — Averbakh, Yuri L vs Borisenko, Georgy K — 1/2-1/2 — Moskou ch-URS
1956 — Smyslov, Vasily vs Djurasevic, Bozidar — 1-0 — Belgrade SRB
1956 — Smiltiner, Shlomo vs Djurasevic, Bozidar — 0-1 — Moskou olm
1957 — Byrne, David vs Fuster, Geza — 1-0 — Cleveland, OH USA
6.Bb2 — 34.1% (519 parties)
1951 — Zalys, Ignas vs Tanguay, Alexandre — 1-0 — Montreal CAN
1951 — Sarosy, Zoltan L vs Anderson, Frank Ross — 0-1 — Toronto CAN
1951 — Anderson, Frank Ross vs Sarosy, Zoltan L — 1-0 — Toronto CAN
1951 — Smyslov, Vladimir vs Keres, Paul Petrovich — 0-1 — Moskou ch-URS
1952 — Reinhardt, Enrique vs Bolbochan, Jacobo — 0-1 — Mar del Plata ARG
6.d3 — 1.4% (21 parties)
1963 — Etruk, Rein T vs Nei, Iivo — 0-1 — Estonia
1975 — Van Riemsdijk, Herman C. vs Garcia Toledo, Pedro — 1/2-1/2 — Fortaleza BRA
1987 — Streshinsky, L vs Tolmachev, Aleksander — 0-1 — ?
1997 — Schloetterer, Hermann vs Erler, Klaus-Juergen — 1/2-1/2 — Heroldsbach
1998 — Raab, Peter vs Kloninger, Paul — 1/2-1/2 — Bad Wildungen
6.Nh4 — 0.2% (3 parties)
1958 — Breustedt, Werner vs Kunz, Horst — 1/2-1/2 — GDR-ch Schkopau GER
2015 — Djeno, Drago vs Bjelicic, Jan — 1-0 — Croatia
2024 — Olarte, Stefan vs Betrisey, Claude — 1-0 — Biel SUI